We have a dead Ryobi 18V one+ 4Ah battery pack from 2013. Started when it didn't want to run high-drain tools, then finally battery pack got really hot after using it in a leaf-blower. Let it cool and stuck it on the charger and showed a full charge after 30s.
Feels like a bit of a waste to throw it out - has anyone tried getting one of these refurbished?
Chuck.
I tried for like a week :) unless u want to go down the path of finding which cell and soldiering